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Bubble map of a response variable

Source: R/bubble-map.R
bubble_map.Rd

Draws a bubble map of a response variable (e.g. catch density) over a ggOceanMaps::basemap(): zero observations are shown as small crosses and positive observations as size- and colour-scaled circles. Useful for a quick overview of survey data before modelling.

Usage

bubble_map(
  x,
  response = "value",
  label = expression(paste("Density (kg ", nmi^-2, ")")),
  zero_color = "grey",
  point_stroke = 0.3,
  ncol = 6,
  by_year = TRUE,
  filled_circles = TRUE,
  axis_text = FALSE,
  axis_title = FALSE,
  legend_rows = 1,
  base_size = 10
)

Arguments

x

A data frame with longitude/latitude columns (auto-detected by ggOceanMaps::guess_coordinate_columns()), a year column, and a response column (see response).

response

Character. Name of the response column. Default "value".

label

Fill/size legend label. Default an expression for density.

zero_color

Colour for zero observations. Default "grey".

point_stroke

Numeric point stroke width. Default 0.3.

ncol

Integer. Number of facet columns when by_year = TRUE. Default 6.

by_year

Logical. Facet by year? Default TRUE.

filled_circles

Logical. Use filled circles (TRUE, default) or coloured outlines?

axis_text, axis_title

Logical. Show axis text / titles? Default FALSE.

legend_rows

Integer. Number of legend rows. Default 1.

base_size

Numeric. Base font size. Default 10.

Value

A ggplot object.

See also

ggOceanMaps::basemap()

Author

Mikko Vihtakari

Examples

# \donttest{
data(sebastes)
d <- subset(sebastes, year %in% 2018:2019)
bubble_map(d, response = "density", by_year = TRUE, ncol = 2)

# }